I did not find any specific bugs for such behavior. Can you capture the console logs from one such phone when the issue is reported before unplugging and replugging the phone. The corresponding extension mobility traces from cucm will also provide details of what the issue could be.
We have already opened TAC case a month ago but still no proper fix... if you have access to TAC tcketing tool propbabley i can share the TAC case number we have all logs case troubleshooting everything there...
This issue will happen suddenly on any random phone. 2 to 3 times in a week in any of the office location.
My suggestion would be to get the TAC case reopened if the issue is not resolved yet. The existing engineer can involve his escalation team if he is unable to diagnose the problem with the logs that he has collected.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...